Sheet-metal receptacle.



C. T. DRAPER.

SHEET METAL REGEPTAGLB.

APPLICATION FILED AUG. 22, 1912.

Patented Jem.y 12, 1915.

fr MM m Wm M 1J 5% GMES T. DER, F CLEVELAND, OHIO, ASSIGNOB TO THE DRAPEB MANUFACTUR- ING COANY, OF CLEVELAND, OHIO, A CORPORATION F OHIO.

SHEET-METAL RECEPTACLE.

Specification of Letters Eatent.

Patented dan. i2, i915.

Application led August 22, 1912. Serial No. 716,413.

citizen of the United States, residing at Cleveland, in the county of Cuyahoga and s State of Ohio, have invented certain new and useful Improvements in SheetMetal Receptacles, of which the following is a specification.

My invention relates to improvements in sheet-metal receptacles, and more particularly to barrels formed of sheet steel with reinforced bilges and chimes.

The object of my invention is to provide a receptacle whichwill be durable, remain liquid-tight and withstand severe usage.

Steel barrels, as previously constructed, have been provided with reinforcing members, but these prior structures have deended upon the maintenance of the annuar joints at the heads, by the closeness of engagement of the reinforcing chime with said annular joints. Moreover in providing a bilge for steel barrels, it has been found that in rolling annular ribs or elevations about the body of the barrel, that the steel is weakened adjacent to the highest portions of the rib, and the strength and wearing qualities of the barrel are consequently impaired. Accordingly, I have sought to remedy these defects, first, by maln'ng a liquidtight, double-locked joint between the head and `lgarrel body, independent of the reinforcing means. Second, I have provided a peculiarly shaped reinforcing chime, having a protective over-turned lip for the joint, and frusta-conical walls extending within the head, wherein said chime -is seated by shaping said head and barrel body thereto. Third, my improved barrel is provided with two centrally positioned annular ribs which are reinforced by circumferential bands of heavier gage metal, rolled to conform to said ribs, and which preferably are of greater diameter than the chimes of the barrel, in

order to form a bilge whereon it may be,

away, illustrating a sheet metal barrel, embodying my improvements. Fig. 2, is an enlarged detail view, showing the annular joint in section with the upper portions of the closure-member and barrel suitably shaped to conform to the interior frustoconical rim. Fig. 3, is a similar view with the exterior iange compressed over the joint, and Fig. 4, is a fragmentary sectional view upon an enlarged scale,`showing the reinforcing band in position before the barrel is annularly rolled to conform thereto.

Throughout the figures of the drawings, I have employed the same character of reference to indicate similar parts.

It will be understood that the sheet metal barrel hereinshown is typical merely of the structural features of barrels, containingdrums or metallic receptacles for various purposes, and particularly requiring an effective seal for'avoiding losses of the contents, by reason of evaporation and leakage.

The body portion ais of substantially cylindrical form; being constructed from sheet metal of suitable gage. Adjacent to the central portion of the barrel there are provided two (2) integral, spaced, circumferential ribs a.' a. Exterior of the Said ribs, there are respectively provided the bands or reinforcing hoops b b. These preferably are of heavier gage metal, and of slightly larger initial diameter than the body of the barrel. Moreover the edges of said bands usually are slightly beveled, as shown. These bilgeforming ribs commonly are produced by rolling the cylindrical body interiorly of, and beneath the bands, whereby the reinforcing bands are brought'toconvex shape, in order to protect the ribs and reinforce the barrel throughout these somewhat weakened annular areas. By this construction the ribs are provided with protective convex bands which form the bilge of the barrel and receive the principal strain in tipping and rolling the barrel about. By reason of the concavo-convex cross-section of these circumferential reinforcing bands b b, more` over, it is practically impossible to displace them from their protective exterior position about the ribs of the barrel. Furthermore, with the protective bands shaped in place concurrently with the formation of the ribs, said bands fit so tightly as practically to exclude the entrance of moisture between the engaging metal' surfaces, and by painting idd or suitably coating the said bands, all danger of rust along the weakened portions of the integral ribs a a may be avoided.

rIhe heads of the barrel comprise convex disks d d having upturned rims d of such diameter as to fit snugly Within the ends of the cylindrical body portion. Preferably the edges of said vbody portion first receive a coating of any suitable plastic cement, such as rubber gutta-percha or glue compositions, and double-locked joints a are formed, embracing the edges of the rim and barrel; thereby affording four thicknesses ofvmetal at said joints. `Any inequalities or imperfections, of course, will be rectified by the cement c, Which lills the minute spaces Within said joint, between the surfaces and edges of the sheet metal.

In order yto.provide a reinforced chime, wrought iron rings e e are forced down Within the upturned rims, so that their bases e e rest upon the heads d d, adjacent to their rims. These rings, as shown, are

generally of frusto-conical shape, and have their largest diameter, exclusive of the flanges e, adjacent to their bases. The rims of the barrel heads, together With the double locked joints and engaging edges of the body portion of the barrel, are thenv forced back against the frusto-conical Walls of the rings e, by rolling or otherwise compressing the sheet metal to conform to the inclinedl outer Walls thereof. The flanges c e are then rolled down to overlap the double-locked joints and secure the sheet metal beneath the flanges; therebycompleting chimes for the barrel, of less diameter than the bands b b forming the bilge of the A barrel. 1

Having now described with some detail, a steel barrel eXemplifying and embodying my invention, I claim as new and desire to secure by Letters Patent, the following:-

1. In a permanent closure for metallic reeeptacles, the combination with a substantially cylindrical body-portion formed of sheet-metal, of a disk-like sheet-metal closure-member inserted Within the end of4 said body-portion; the same having an upturned rim interiorly of its edges united With the edges of the body-portion to form a liquid tight joint, and a protective frusto-conical rim inserted With said closure-member against the inclined Walls of Which the edges thereof and the edges of the bodyportion are compressed; said protective .rim having a down-turned protective fiangezbent over the liquid-tight joint, substantially as set forth. y

Q. In a sheet-metal barrel, the combination with a substantially cylindrical bodyportionA formed of sheet-metal, of disk-like sheet-metal heads inserted within the ends of said body-portion; the same having upturned rims With their edges united with the edges of thebody-portion to form doublelocked annular joints, and Kreinforcing frusto-conical rings ,v respectively inserted Within the-rims to bear annularly against the'heads; each of said rings having a flange partially inclosing the corresponding double-locked joints, and retaining the edges of the head and body-portion colnpressed against the frusto conical Walls of said rings, substantially as set forth.

3. A metallic barrel structure, comprising a cylindrical body-portion of sheet metal, an inset closure at each end having its edges bent over to form a seam With the edges of. said body-portion, and an inset rim for each closure; said rim having unbroken inwardly inclined annular Walls against which the body-portion and seam are smoothly rolled, and an overturned edge or flange protecting the seam, substantially as set forth.

In testimony whereof I do now allix my signature in the presence of two witnesses,

CHARLES T. DR'APHR.

'itnesses SHERMA N A irren, LRLK'J.' LYNN LAWRENQE. 

